Okay First time poster long time reader. This will be my second build of a custom rifle. My first I just simpley picked a cartridge and called a smith and had him pick everything except for action (barrel, barrel twist length etc.) So for this one I would like to put together and know why. Im going to choose .308 winchester. I have researched the round. I should prob add that I want this to shoot out to 1000 yards and stay supersonic for target and hunting alike. This is what I have found and what I'm thinking about going with. Action: Savage 111 with detachable mag. The factory detachable mag is a piece so I am hopefully going to find one an after market detachable. Any ideas? Cartridge: 308 winchester with a 175 grain SMK Chamber: 308 Palma Match with about .112-.114 lead for the SMK (From the print I have found this is a NO turn neck which is what I would like, and it has a lead of .112. Was this and actual 308 Palma Match print or a altered one? The print had Pacifit Tool and Gauge on it.) Barrel: Maker- Hart Twist- 1-11 (I have heard 1-11.25 is the ideal for the bullet combo but I figured the 11 would work fine) Length- 20-26'' Other Load stuff: Winchester Brass Fedral 210 primers Varget or RL15 The barrel has been a pain trying to figure out. I know that the length and velocity go hand and hand. I would really like a 20" b/c of ease of movement and carring but as I said I would also like the round to be supersonic at a 1000 yards. Has anyone current real world info on how the 175 SMK and the 20 inch barrel perform together? I need opinions on action, chamber, barrel twist and what length are people running? I am choosing this action first b/c I have one in 30-06 and b/c I like how cheap and yet accurate the savage actions are. Thanks Paul B.